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| author | Stephane Carrez <stcarrez@nerim.fr> | 2003-03-10 22:27:46 +0100 |
|---|---|---|
| committer | Stephane Carrez <ciceron@gcc.gnu.org> | 2003-03-10 22:27:46 +0100 |
| commit | ae5b570e5727129dffc9a9e8cf2613f1c2b3ea9b (patch) | |
| tree | e29cde02bfed0ab4d0c312602ef8c55c354e0cd3 /gcc | |
| parent | 88849449f3f181f6eeebe60059c6baffbd988b8e (diff) | |
| download | gcc-ae5b570e5727129dffc9a9e8cf2613f1c2b3ea9b.zip gcc-ae5b570e5727129dffc9a9e8cf2613f1c2b3ea9b.tar.gz gcc-ae5b570e5727129dffc9a9e8cf2613f1c2b3ea9b.tar.bz2 | |
m68hc11.c (m68hc11_gen_rotate): Set carry before each 16-bit rotation.
* config/m68hc11/m68hc11.c (m68hc11_gen_rotate): Set carry before
each 16-bit rotation.
From-SVN: r64125
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/m68hc11/m68hc11.c | 24 |
2 files changed, 16 insertions, 13 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 703a280..92c8db4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2003-03-10 Stephane Carrez <stcarrez@nerim.fr> + + * config/m68hc11/m68hc11.c (m68hc11_gen_rotate): Set carry before + each 16-bit rotation. + 2003-03-10 Zack Weinberg <zack@codesourcery.com> * c-opts.c (add_prefixed_path): Don't use concat. When diff --git a/gcc/config/m68hc11/m68hc11.c b/gcc/config/m68hc11/m68hc11.c index 46d28a0..9ccac2e 100644 --- a/gcc/config/m68hc11/m68hc11.c +++ b/gcc/config/m68hc11/m68hc11.c @@ -3855,15 +3855,15 @@ m68hc11_gen_rotate (code, insn, operands) if (val > 0) { - /* Set the carry to bit-15, but don't change D yet. */ - if (GET_MODE (operands[0]) != QImode) - { - output_asm_insn ("asra", operands); - output_asm_insn ("rola", operands); - } - while (--val >= 0) { + /* Set the carry to bit-15, but don't change D yet. */ + if (GET_MODE (operands[0]) != QImode) + { + output_asm_insn ("asra", operands); + output_asm_insn ("rola", operands); + } + /* Rotate B first to move the carry to bit-0. */ if (D_REG_P (operands[0])) output_asm_insn ("rolb", operands); @@ -3874,14 +3874,12 @@ m68hc11_gen_rotate (code, insn, operands) } else { - /* Set the carry to bit-8 of D. */ - if (val != 0 && GET_MODE (operands[0]) != QImode) - { - output_asm_insn ("tap", operands); - } - while (++val <= 0) { + /* Set the carry to bit-8 of D. */ + if (GET_MODE (operands[0]) != QImode) + output_asm_insn ("tap", operands); + /* Rotate B first to move the carry to bit-7. */ if (D_REG_P (operands[0])) output_asm_insn ("rorb", operands); |